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Chapter 4 – Configuring VLANs
IGMP
This parameter enables or disables IGMP Snooping on the VLAN in question.
Note:
If IGMP Snooping is not enabled for the VLAN, both IGMP messages and multicast
streams from routers will be forwarded directly to all members of the VLAN. If any one
member of the VLAN joins a multicast group then
all members of the VLAN will
receive the multicast traffic
. For more information on IGMP see Chapter 7 –
Configuring Multicast Filtering.
Port VLAN Parameters Menu
The Port VLAN Parameters menu is accessible from the Virtual LANs menu.
Figure 22: Port VLAN Parameters Menu
My Switch Port VLAN Parameters Admin Access
Port Type PVID PVID Format
1 Edge 1 Untagged
2 Edge 1 Untagged
3 Edge 4 Untagged
4 Edge 4 Tagged
5 Trunk 1 Untagged
6 Edge 1 Untagged
7 Edge 1 Untagged
8 Edge 1 Untagged
CTRL Z
Hl S
Sh ll
Type
This parameter specifies how the port treats VLANs. There are two types of
VLAN port; edge and trunk. The following table presents a brief description of
how the port type (and other) parameters serve to address specific applications.
Port
Type
# VLANs
Supported
PVID
Format
Usage
Untagged
VLAN Unaware networks – All frames are sent and
received without the need for VLAN tags.
Edge
1 (Native)
Configured
Tagged
VLAN Aware networks – VLAN Traffic domains are
enforced on a single VLAN
Trunk
All
Configured
except those
in Forbidden
list
Tagged or
Untagged
Manually Configured Switch-Switch Connections –
VLANs must be manually created and administered.
Multiple-VLAN devices – Implement connections to
devices that support multiple VLANs at the same time.
The factory default sets the port type to “edge“.
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